About the sleeves, I know that on set in sleeves you are technically supposed to sew the sleeve seams and the side seams before you set the sleeve into the body of the garment. I know this. I have done this, religiously, on every sweater I've ever done with set in sleeves, until the one I knit right before this (it wasn't blogged, for reasons that shall become clear at some point in the future). On the last sweater, I sewed the sleeves in before I did the underarm seams and that is the first sweater that the sleeves went in perfectly, smoothly, and IDENTICAL TO EACH OTHER. Every other set in sleeve I have ever done, I've gotten one sleeve in perfectly and the other one I fight with. I knit the sleeves together at the same time. (Two balls of yarn, the same needle.) They have identical shaping and identical gauge. I do the armscye shaping identically also. I keep obsessive notes about measurements and row number so the front and back are identical. If the sweater is a cardigan, I do both fronts at the same time, like the sleeves. There is no way, the sleeve caps and armscyes aren't identical, but I always fought with at least one sleeve (when you fight with both sleeves, that's probably a sign that you made a mistake knitting it, or unfortunately, the designer flubbed on the sleeve cap shaping and you need to redesign it - not fun, but necessary if you want the sweater to fit and look good). That is, I always fought with at least one sleeve, until my previous sweater. Now I designed that sweater, but I can't believe that I am such a wonderful designer that I designed the best fitting sleeve cap and armscye I've ever knitted. So, I figured I must be on to something with the whole sewing-things-together-in-the-wrong-order idea. So, I gave it a try on Gryffindor Mourning and guess what? IT WORKED! I will never sew a set in sleeve into a sweater the right way again.
(Wow, after re reading this post, I sound so Scarlett O'Hara in that last line.)